Arc Flash Protection

It is the goal of Murray State University to control the arc flash hazard which occurs
during the maintenance of electrical building components throughout campus. Standard
operating procedures will eliminate or control arc flash events to reduce the hazard
to employees.

To reduce the potential for arc flash occurrences, the following standard operating
procedures will be applied:

De-energize all circuits before performing any maintenance on them.

Ensure that all possible sources of supply are found and open disconnecting devices
for each source.

Apply lockout/tagout devices in accordance to the Murray State University Lockout/Tagout
Procedures.

Test voltage on each conductor to verify that it is de-energized.

Apply grounding devices where stored energy or induced voltage could exist or where
de-energized conductors could contact live parts.

If it is necessary to work on energized equipment, the following procedures will be
applied:

Establish boundaries keeping those not involved with the work ten feet away.